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Features

120MM silent fan design, long life, noiseless and fastest cooling time, High performance components are designed for extra long life and provide maximum system performance

Manufacturer Warranty

Parts

1 year limited

Labor

1 year limited

Quick Info

WarrantyBeyond any applicable Newegg return policy, this item is warranted independently by the product's Manufacturer or a Third party. Below is a summary provided for convenience only and may not be accurate or current.
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Rating: 1/5Dead after 3 months

Cons: Dead in 3 months. I am going to RMA this to CoolMax and will update this post after I get my replacement.

Other Thoughts: I will be disapointed if this takes a long time to RMA.

2 out of 2 people found this review helpful.
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Anonymous

6/1/2010 11:26:45 AM

Tech Level: 5/5

Ownership: 5/5

Rating: 2/5Coolmax 550W PS

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: Good Price, OK performance. Seemed to hold the rails well and I have owned a couple dozen of these units in that I have >30 racks of equipment. It's an OK basic supply I've built many ATX style machines on.

Cons: Longevity. A couple years back, these seemed more durable than current production units. These days, consider yourself lucky if you get 18 months out of it on even a mediocre system load.

Other Thoughts: Unfortunately, this model went from a good value to earning a permanent spot on my (bleep) list. If you need a budget 550watt ATX style (pretty much the smallest PS I'd consider buying these days for any machine) a BP550 with 3 12V rails and a 3 year warrenty from (someone else) would be the way to go at this price point.

Rating: 1/5Power Supply Cable Length

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: I have none.

Cons: I had this power supply twice, average failure once per year.

Other Thoughts: Reordered same power supply, model and part number for the third time; but now it comes with shorter connecting cables. They are not long enough to reach the system board connectors in my Antec P180 case.

Rating: 4/5Was a work horse

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: Price..When I bought it there was a rebate and so it was only $35 bux. Has lasted for 15 months under extreme circumstances. I run my Intel E6750 at 3.2 Ghz daily and at 3.7Ghz when gaming with an OC'd 9600GT. I also have 4 case fans and every perpheral known to man. I have spent many long hours of heated, literally, gaming. Very, very quiet.

At some point in the last 4 months,or maybe more, a cable tie that used the PSU fan grate shifted and blocked the fan. It was really quiet! lol. And still kept ticking fanless. I finally got FEAR 2 and an hour into it the PSU fuse popped. Rightfully so under that much heat. But I still give this thing credit for running for so long without a fan.

Cons: 1st day of ownership the PC would randomly not start and sometimes shut off when bumped. Finally noticed a smell from the PSU. The power chord had one pin that was arcing with a poor connection. Replaced chord with one I laying around and all was good.

Pain in the NECK fuse. Ripped the thing apart and the fuse is soldered to the board. Desoldered it and headed out tomorrow to pick up a 250V 6A replacement. Will have to resolder and hope through all this no other connections came loose (lot's of pulling tugging and general ackwardness to get at the fuse).

Other Thoughts: If it still works when the new fuse is put in, I'll be amazed. Usually another component is taken out somewhere due to poor engineering.

Rating: 5/5It dies gracefully

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: This power supply dies gracefully -- that is, without making a burnt offering out of the MB, CPU, video processor or peripherals (SATA & EIDE). After having countless no-name power supplies fry the devices they feed I was delighted to see this one leave everything unscathed.

Cons: No one likes to have a component die. This was not in a particularly difficult environment: Intel D101GGC MD, 2.3Ghz Pentium D, XFX dual screen adapter, Comtrol octaport adapter, two SATA HD's, removable EIDE HD, floppy & DVD/CD reader. The case is a 3 fan rackmount, 3 RU high so there was lots of cooling. When it died power for the 12V fans and low current sensing power for the on/off switch was still there. It seems like one leg of the 5V supply may have died but I didn't check with a 'scope or meter.

Rating: 3/5Irony, maybe.

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: The power supply still works today.

Cons: The silent technology, if you will, stopped working about 3 months after purchase. The unit started producing a friction like noise that I could not get to go away. This progressively got worse until the fan stopped working. Finding a replacement for the slim mm fan is difficult.

Did you find this review helpful?

Thanks for the valuable feedback you provided!

Anonymous

9/15/2008 7:02:21 AM

Tech Level: 3/5

Ownership: 5/5

Verified Owner

Rating: 3/5worked OK for 1.5 years, then died

This review is from: COOLMAX CX-550B 550W ATX12V Power Supply

Pros: Worked fine for 1.5 years, quiet fan.

Cons: Randomly died after 1.5 years of light use.

Other Thoughts: Although the PS worked for 1.5 years, I had hoped for a longer service life, and will probably try another brand next time.

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